Borderline Personality Disorder and Addiction
Borderline personality disorder and addiction travel together for most people with BPD, each making the other harder. Treated together, both improve, and recovery is the realistic outcome.
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How BPD and Addiction Overlap
If you live with borderline personality disorder and also lean on alcohol or drugs, you are not weak and you are not alone. The two conditions overlap so often that addiction is closer to the rule than the exception, and both respond to treatment[1].
From the outside, heavy substance use can look like the whole problem. From the inside, it is usually an attempt to quiet emotions that have grown too big to carry. Naming both parts plainly is what opens the door to care that actually works.
BPD has one of the better outlooks in psychiatry, and addiction is treatable too. Most people with BPD improve a great deal over time[2], and when both conditions are treated together, the substance use tends to ease alongside the BPD.
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What to do in the moment:
- Reach a person now. Call or text 988, or text HOME to 741741 (Crisis Text Line). You do not have to be certain you are in danger to reach out.
- Put space between you and the means of harm. Hand pills, sharps, or extra doses to someone you trust, and stay near other people if you can.
- Ride out the wave. Urges to self-harm or to use tend to peak and pass within minutes. Cold water on the face, a hard walk, or one phone call can carry you through the spike.
- If someone has overdosed or will not wake up, call 911. Give naloxone (Narcan) if opioids may be involved; it reverses opioids, so use it even if you are unsure, then call 911.
- The overlap is closer to the rule than the exception. About 78 percent of adults with BPD develop a substance use disorder at some point in their lives[1].
- It runs both ways. Among people in addiction treatment, rates of BPD have been estimated as high as 65 percent[3].
- Each condition makes the other harder. People with both are more impulsive, less stable, show more suicidal behavior, and have shorter stretches of abstinence[1].
- Treating both together works. In trials, DBT adapted for substance use raised day-to-day functioning and increased the number of abstinence days[1].
- Recovery is the expected outcome. Most people with BPD improve substantially over time, and the substance use can ease with them[2].
Why BPD and Addiction Co-Occur So Often
The numbers are striking, and they are worth knowing plainly. BPD and substance use disorders co-occur far more than chance would predict, in both directions, which is why clinicians increasingly treat them as two parts of one picture rather than two separate problems[1].
Why the Two Travel Together
Several forces pull BPD and addiction into the same orbit. They share roots in temperament and early adversity, they share a core of impulsivity and emotion that is hard to regulate, and each one creates conditions that make the other easier to fall into[4].
Twin research backs this up. The link between borderline traits and substance use is driven partly by shared genetic vulnerability and partly by a shared environment, rather than by one simply causing the other[5][6].
How Common the Overlap Is
Different settings produce different rates, but every credible estimate is high. The figures below show how consistently the two conditions appear together, whichever door a person comes through[7].
| Population | How often the other condition appears | Source |
|---|---|---|
| Adults with BPD, over a lifetime | About 78% develop a substance use disorder | Kienast et al., 2014[1] |
| People in addiction treatment | Up to about 65% meet criteria for BPD | Pennay et al., 2011[3] |
| People with BPD | More than half develop alcohol use disorder | Patzelt et al., 2025[7] |
Read together, these numbers carry one message. If you have BPD, a substance problem is common and expected rather than a sign of failure, and the reverse is just as true for people who arrive through addiction treatment.
What Drives the Overlap
Understanding why substances take hold so easily in BPD makes the way out clearer. The pull is not about thrill-seeking or weak character. It is mostly about relief from pain that feels unbearable in the moment[8].
Substances as a Way to Quiet Unbearable Emotion
The core of BPD is emotional dysregulation: emotions that arrive fast, hit hard, and take a long time to settle. When a feeling becomes intolerable, a drink or a drug promises to switch it off, and for a short while it does[8].
Research bears out this self-medication pattern. Among people in substance use treatment, difficulty regulating emotion is what links early trauma to borderline pathology[4], and in daily life, a conflict with someone close can directly trigger drinking in people with BPD[9].
When treatment improves emotion regulation, substance use tends to fall with it. In women receiving DBT for both conditions, the gains in managing emotion were what explained the drop in how often they used[8].
Shared Impulsivity and Shared Roots
Impulsivity is the other thread. It is one of the nine BPD criteria and a defining feature of addiction, so the two disorders are partly built from the same raw material[10].
That shared material is partly inherited. Genetic variation in personality traits, especially the tendency toward negative emotion, accounts for a large share of the overlap between borderline features and substance use disorders[5][11].
Early adversity adds to it. Childhood maltreatment raises the risk of both conditions, and people who carry both diagnoses tend to show higher impulsivity, more difficulty with emotion, and more alexithymia than people with a substance problem alone[12][4].
How Each Disorder Worsens the Other
BPD and addiction do not simply sit side by side. They feed each other, so the combination is harder and riskier than either condition on its own[7].
A Harder, Riskier Course
The clinical picture is more severe. People with both conditions are more impulsive and less stable, drop out of treatment more often, and string together shorter periods of abstinence than people with BPD alone[1].
Alcohol specifically appears to worsen BPD symptoms, which can then drive more drinking and tighten the cycle[13]. Co-occurring substance use is also linked to higher relapse and poorer outcomes across treatment[3].
Higher Risk of Self-Harm, Suicide, and Overdose
This is the part to name plainly, because it is where the stakes are highest. Suicidal behavior is more common when BPD and addiction occur together[1], and the combination carries a higher risk of poor outcomes, including suicide[7].
Self-harm and substance use overlap as well. Among people who are opioid-dependent, BPD and alcohol dependence are among the factors most strongly tied to self-injury and repeated suicide attempts[14].
Impulsive substance use also raises the danger of overdose, and that danger climbs further when sedatives are combined. Naloxone, sold as Narcan, reverses an opioid overdose and is worth keeping on hand if opioids are anywhere in the picture.
Integrated Treatment for BPD and Addiction
Here is the hopeful center of all of this. When both conditions are treated together, in one plan, people get better, and the evidence increasingly points away from tackling them one at a time[1].
Why Both Are Treated Together, Not in Sequence
The old approach asked people to get sober before addressing their BPD, or the reverse. It tends to fail, because the untreated condition keeps pulling the treated one back down. The current recommendation for these co-occurring disorders is integrated treatment: treating both as early as possible, in one coordinated plan[1].
That does not mean everything at once with equal weight. Often a team works in a thematic order, steadying the most dangerous behaviors first, then the substance use and the emotional patterns underneath, all within the same treatment[1].
DBT for Substance Use and Other Proven Approaches
The best-studied option is dialectical behavior therapy, or DBT, adapted for addiction. Standard DBT reliably reduces BPD symptoms even when a substance problem is present[15], and a version built for substance use adds skills aimed squarely at staying off drugs[16].
In practice it works. Across randomized trials, DBT raised day-to-day functioning and increased both abstinence days and clean urine tests[1], and intensive DBT programs improve coping and depression in people who carry both diagnoses[17].
DBT is not the only path. Reviews find that DBT and dynamic deconstructive psychotherapy both cut substance use, self-harm, and dropout[18], schema therapy has brought BPD remission alongside fewer drinking days[19], and good psychiatric management adapts well to people with both conditions[20].
| Approach | What it targets | What the evidence shows |
|---|---|---|
| DBT and DBT for substance use | Emotion regulation, distress tolerance, staying off substances | Higher functioning, more abstinence days, less self-harm[1][18] |
| Schema therapy | The deep-seated beliefs behind both conditions | BPD remission with fewer drinking days in early studies[19] |
| Good psychiatric management | Practical, everyday management of both | Adapts well to co-occurring substance use in real-world care[20] |
Where Medication Fits
No medication is approved specifically for BPD, and pills are never the centerpiece of treatment. Even so, medication for the addiction has a real place, and there is no good reason to withhold it from someone who also has BPD[1].
One example: nalmefene, used to curb drinking, lowered alcohol use and also eased BPD symptoms and self-injury in an early study of people with both conditions[13]. Medication supports the work; the therapy does the lifting.
Recovery Is Real for Both
If the risks are real, so is the recovery, and that deserves the last word. The outlook for BPD is genuinely good, and the substance use does not have to be permanent either[2].
The Outlook Improves with the Right Care
Long-term studies are encouraging. Over the years, 50 to 70 percent of people no longer meet the criteria for BPD, and the impulsive, self-harming behaviors tend to fade first[2]. Structured therapy measurably reduces self-harm and suicidal behavior[21].
Addiction recovery follows a similar arc. As emotion regulation steadies and abstinence days add up[1], schema therapy and DBT both show that meaningful change is reachable for people once written off as too complex to treat[19].
What the First Step Looks Like
You do not need to have it all figured out to begin. A good first move is to ask for an assessment that looks at both the BPD and the substance use, so the plan covers everything in one place rather than splitting you between services.
Say plainly that both are part of the picture, and ask specifically about DBT and integrated, co-occurring care. For the wider treatment map, see borderline personality disorder treatment, and if alcohol is part of your story, alcohol use and addiction shows the path out.
Getting Help for BPD and Addiction
Whatever brought you here, recognizing the overlap is not the bottom. It is the turn. BPD and addiction are both treatable, they respond best when treated together, and getting better is the most likely outcome with the right care.
The fuller picture of the condition is worth reading next on borderline personality disorder, and if you recognize the patterns in yourself, the symptoms of BPD are a good place to start.
Frequently asked questions
How Often Do BPD and Addiction Occur Together?
Very often, and in both directions. About 78 percent of adults with BPD develop a substance use disorder at some point in their lives[1], and among people in addiction treatment, rates of BPD have been estimated as high as 65 percent[3]. More than half of people with BPD develop alcohol use disorder over a lifetime[7]. The overlap is common and expected, not a sign of failure.
Why Do People With BPD Turn to Drugs and Alcohol?
Mostly for relief. BPD involves emotions that are fast, intense, and slow to settle, and substances can switch that pain off for a while[8]. The two conditions also share inherited traits and early-life adversity, so they are partly built from the same material[5]. When treatment improves emotion regulation, substance use tends to fall with it[8].
Should BPD and Addiction Be Treated at the Same Time?
Yes. Treating one and postponing the other tends to fail, because each keeps reigniting the other. The recommendation is to treat both as early as possible in one coordinated plan[1]. Integrated approaches such as DBT adapted for substance use reduce both substance use and self-harm[18].
Does DBT Work for Co-Occurring BPD and Substance Use?
It is the best-studied option. Standard DBT reduces BPD symptoms even when a substance problem is present[15], and DBT adapted for substance use raises functioning and increases abstinence days in trials[1]. Intensive DBT also improves coping and mood in people who carry both diagnoses[17].
Can You Recover From Both BPD and Addiction?
Yes, and it is the most likely outcome with good care. Over the long term, 50 to 70 percent of people no longer meet the criteria for BPD, with impulsive and self-harming behaviors easing first[2]. As emotion regulation steadies, substance use tends to ease alongside it[8]. If you are in crisis, call or text 988.
What Raises Overdose and Suicide Risk With BPD and Addiction?
The combination raises risk. Suicidal behavior is more common when BPD and addiction co-occur[1], and the pairing carries a higher risk of poor outcomes, including suicide[7]. Impulsivity and mixing substances raise overdose danger, so keep naloxone (Narcan) on hand if opioids are involved, and call 988 or 911 in an emergency.
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